Pipe-union.



Patented September 6, 1904.

IINTTan STATES PATENT @einen YILLIAM S. KEMPER, OF MGKEESPORT, PENNSYLVANIA.

PIPE-UNION.

SPECIFICATION forming' part of' Letters Patent No. 769,654, dated September 6, 1904.

Application filed April 5, 1904. Serial No. 201,702. (No model.)

To r1.1/ :rim/1t it www concern.-

Be it known that I, VILLIAM S. Keniaan, a

the pipe-section l has the wings i formed in j the samemanner as the wings are formed on citizen of' the United States of' America, rei siding at 'IcKeesport, in the county of Alleg'heny and State of Pennsylvania, have invented certain new and usef'ul Improvements in Pipe-Unions, of which the following is a specification, reference being' had therein to the accompanying' drawings.

This invention has relation to pipe-unions, and relates in particular to unions f'or sof'tmetal pipe, and has for its object the provision of` novel means f`or detachably securing' together the adjacent ends ofl soft-metal pipes.

The invention consists in the novel construction, combination, and arrangement of' parts hereinafter described and claimed.

In the accompanying drawings, Figure l is a longitudinal sectional view of a pipe-union constructed according to my invention. Fig. 2 is a transverse sectional view of' the same on the line w @r of' Fig. l. Fig. 3 is a detached view, partly in section, ofl one ofl the union members; and Fig. '-l is an end view of' another one of the union members.

'.lhe two sections of' pipe l and 2, which are joined together by my improved union, are of' soft metal-for instance, lead-and each section is orl the same configuration, both being' formed with reduced end portions 3 and upset radial wings i. A union member 5, which is screw-threaded exteriorly at 6, is iitted upon the reduced portion 3 of the pipesection 2, and the wings a are hammered up after the member 5 has been placed in position, thus permanently securing the union member on the pipe-section The union member 5 has cavities 'T formed in its f'ace, and when the wings et of' the pipe-section are upset or formed from the end of the union member 5 by hammering or upsetting said extending end a part of' the metal ofl the wings is f'orced into these cavities 7, thus prox iding va means f'or securing' the pipe-section against rotary movement in the union member. The pipe-section l carriesaunion memberS, which is formed with an annular flange 9, the said iiange having cavities l0 on its face similar to the cavities T of the union member 5, and

the pipe-section Q--that is, by hammering or upsetting' the part of the reduced portion Otl the pipe-section which projects through the union member 8 after the union member has been placed in position on the reduced portion of` the pipe-section. A nut ll, which is interiorly screw-threaded at l2 and which has an inwardly-extending liange 13, fits upon the union member 8 and screws on the union member the flange 13 ot' the nut bearing against the flange 9 of' the union member 8.

A washer la, which is preferably formed ofl hard metal, such as iron or steel, is arranged between the ends of' the pipe-sections l 2, and when the nut ll is screwed up tightly the washer la is held between the wings #l i of the two pipe-sections and 'forms a tight solid joint at that point.

The wings et 4 on the ends ofl the pipe-sections 1 Q are produced by slitting' the part of' the reduced portion of' the pipe-sections which protrude through the union members a'f'ter the latter have been placed in position on the pipe-sections and then hammering or otherwise bending or upsetting the wings to the position shown in Fig. 2 of' the drawings, the outer edge of' the wings being rounded off to conform to the circular contour of' the inner wall of' the nut ll.

The union constructed as above described affords a cheap, eonvenient,and effective means of' joining together the adjacent sections of' soft-metal pipe, and the pipe-sections can be separated and joined together again as often as may be necessary without difliculty or without def'acement of" or injury to the parts.

Having described my invention, I claiml. In a device of the character described, the combination of' a threaded nut having an inwardly-extending fiange, a union member exteriorly screw-threaded and formed with recesses in its end, a union member formed with an annular Vflange adapted to engage the flange of` said nut and having recesses in its end, a washer fitting between said union mem-V bers and adapted to be interposed between the adjacent ends ofI pipe sections projecting through said union member.

IOO

2. In a device of the character described, the combination with adjacent pipe-sections having reduced portions and radial wings, of union members fitting on said reduced portions and having recesses in their ends, said wings having projections which fit in said recesses, a nut having an inwardly-projecting ange, said nut tting over one of said union members and screwing on the other of said union members, and a washer interposed be- IO tween the adjacent ends of the pipe-sections, substantially as described.

In testimony whereof I aX my signature in the presence of two witnesses.

WILLIAM S. KEMPER. Witnesses:

H. C. EVERT, W. T. SNYDER. 

